Train-stopping device.



. L. A. ZBTTEL.

TRAIN STOPPING DEVICE.

APPLIGATION FILED JULY 31, 1913.

1, 1 14,091 I Patented Oct. 20, 1914.

Snowman wi tueoom THE NORRIS PETERS (10.. PHOTO-LlTr-Ia. WASHING "AN, 0c.

LOUIE A. zE'r'rnL, or FLINT, MICHIGAN.

TRAIN-STOPI PING DEVICE.

. Application filed July 31, 1913. Serial No. 782,323.

Specification of Letters Patent.

Patented Oct. 20, 1914.

Devices; and I do hereby declare the follow ing to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in railways, and particularly tomeans for preventing trains running past danger signals.

The principal object of the invention is to provide a simple devicecarried between the rails of a railway which is adapted to be set totrip a valve carried by the train pipe of the air brake system to emptysaid train pipe for application of the braces.

Other objects and advantages will be apparent from the followingdescription when taken in connection with the accompanying drawings.

In the drawings: Figure 1 is a diagrammatic .view showing my trainstopping system. Fig. 2 is an enlarged elevation of the track carrieddevice showing the connections with the semaphore. Fig. 3 is a plan viewof the track carried device and the train pipe loop. Fig. 1 is avertical longitudinal sectional view through the track carried device.

Referring particularly to the accompanying drawings, 10 represents anengine which has the train pipe 11 of the air brake system provided witha rotary valve 12. This valve is suitably disposed on brackets below theengine and is provided with a trip arm 13. The train pipe 11 has aforward loop 11 extending across the front of the engine and providedwith one of the valves 12 in each end so that one of the valves will besure to strike the top, whichis to be hereinafter described, when thetrain is proceeding forwardly or backwardly. Mounted between the tracksis a housing 15 in the upper side of which is provided an opening 16through which is slidably disposed a vertically movable plunger 17 Thelower end of this plunger is pivotally connected to one end of a lever18, said lever being pivotally suspended centrally from a dependingbracket 19. The other end of the lever 18 is connected to one end of aspring 20 which has its other end connected to the housing. The spring20 normally rocksthe lever 18 so that the plunger 17 is withdrawn withinthe housing. Arranged below the spring carried end of the lever 18 is adouble-grooved pulley 21 around which passes the two cords or cables 22and 23, these cables being connected at one end together and to one endof a cable 21 which extends through a conduit 25. This conduit leadsfrom the housing 15 to the signal station 26 where it is connected toone end of a hand lever 27. Located above the point of connection of thecables 22, 23 and 24 is a ledge 28, and slidably mounted on this ledgeis a block 29. Connected at its opposite ends to the block and to theadjacent end of the housing is a spring 30. Connected to the other sideof the block is the other end of the cable 22, while the other end ofthe cable 23 extends upwardly and is connected to the spring carried endof the lever 18.

Thus when the cable 24 is pulled, the lever 18 will be rocked on thebracket19 and cause the plunger 17 to be projected above the housingsufficiently farto be struck by the arm 13 on the. valve 12, whiletheblock 29 is drawn under the lower endof the plunger to hold the sameiii-elevated position. When the lever 27 is released or moved in theopposite direction, the spring 30 will withdraw the block 29 frombeneath the plunger 17 and permit the spring 20 to move the lever intonormal position, withdrawing the plunger into the casing. The spring 30returns the block to its normal position pulling the cable 22 with it.

The housing and signal are located close to each other. The cable 241 isconnected to the semaphore arm 31, so that when the arm is thrown upinto danger position, the plunger 17 will be projected through the topof the housing. Should a train attempt to run past the danger signal,the valve 12 will be swung open by the engagementof the arm 13 with theplunger 17 opening the train pipe to the atmosphere, and causing the airpressure therein to be exhausted. This would apply the brakes and bringthe train to a stop in time to avoid an accident.

What is claimed is The combination with an air valve carried by a trainin the air brake system, of a housing located between the rails of arailway, a pivoted lever mounted in the housing, a plunger pivotallyconnected to one end of the lever, a spring connected to block and theother to the lever, and a [rocking the lever to project the plunger theother end of the lever and to the housing for holding the plungernormally Withunder the plunger.

drawn into the casing, a pulley mounted in In testimony whereof, I aflixmy signathe housing, a sliding spring-held block, a ture, in thepresence of two Witnesses.

pair of cables trained around the pulley r one'of the cables beingconnected with the LOUIE ZETrEL' above the housing and position theblock 10 lVitnesses GEO. V. STORKWEATHER, GEORGE N. LAWRENCE.

cable connected to both of said cables for 7 copies of this patent mayb'e'obtaine'd for five cents each, by addressing'the Commissioner oflatents,

Washington, D. G.

